Home / 2,155,173.54-2,974,860.18-1,284,281.46

Finding the Fourth Proportional to 2,155,173.54, 2,974,860.18 and 1,284,281.46

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Solution

The fourth proportional to 2,155,173.54, 2,974,860.18 and 1,284,281.46 is: 1,772,737.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,155,173.54 : 2,974,860.18 = 1,284,281.46 : x
  2. Step 2: Convert to fraction form
    2,155,173.54/2,974,860.18 = 1,284,281.46/x
  3. Step 3: Cross multiply
    2,155,173.54x = 2,974,860.18 × 1,284,281.46
  4. Step 4: Simplify right side
    2,155,173.54x = 3,820,557,775,266.26
  5. Step 5: Solve for x
    x = 3,820,557,775,266.26/2,155,173.54
  6. Step 6: Final answer
    x = 1,772,737.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.